Signalilng apparatus.



l. A. KEESEY & A. SHEDLCK. SIGNALING APPARATUS.

APPLICATION min MAY 22. 19u. RENEWED AUG. 8'. 1918.

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2 SHEETS Patented 0ct.\ 1, 1918.

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1.- A. KEE'SEY & A. SHEDLOCK.

SIGNALING APPARATUS. 4 APPLlcAnoN FILED MAY 22. :917. nENEwED Aue. 8. 191s.

1380,48. Patented oct. 1, 1918.

2 SHEETS-SHEET 2.

gwueaozs. M m M07. l 1g khan Stro/amm JOI-IN ARTHUR KEESEY, OF BROOKLYN, NEW YGRK, AND ALFRED SHEDLOCK, 0F CANNONDALE, CONNECTICUT; SAID SHEDLOCK ASSIGNOR TO SAID KEESEY.

SIG-NALING APPARATUS.

Specification of Letters Patent.

Patented Uct. 1, 1918.

Application iiled May 22, 1917, Serial No. 170,134. Renewed August 8, 1918. Serial No. 248,962.

To all whom t may concern.'

Be it known thatwe, JOHN ARTHUR KEE- snY and ALFRED SHEDLOGK, citizens of the United States, residing, respectively, at Brooklyn, county of Kings, State of New York, and' Cannondale, Fairfield county, State of Connecticut, have jointly invented new and useful Improvements in Signaling Apparatus, of which the following is a specification. s

This invention relates to that class of mechanical telegraph systems which comprise dials with orders or messages marked thereon, pointers adapted to be set at any of the messages or orders and handles for operating the mechanism of and setting the pointers of message sending apparatus, and through the medium of transmitting connections actuate the mechanism of and correspondingly set the pointers of receiving apparatus. j

An object of this invention is to provide for a great number of messages or orders in each set or group of indications on the dials by fully utilizing all of the available ciroular areas thereof. Another object is to simplify the mechanism of the apparatus and the transmitting connections between coacting apparatus; also to reduce the numberv of devices used in transmitting separate groups of messages. A further object is to provide a simple means for taking up the slack, or looseness due to wear, &c., in the connections between coacting apparatus, and so insure positiveness of actionat all times. Another object is to provide means for readily adjusting the pointers to the zero or starting points of the groups of messages and to cause the pointers of the sending and receiving apparatus to work in unison.

The structures by which these objects are attained and details of and modifications in the mechanism, will in conjunction with the accompanying drawings now be set forth.

Figure 1, is a face view of an apparatus, showing the dial and indicating pointers, which may be used in message sending and receiving apparatus of mechanical telegraphs.

Fig. 2, a vertical section of the apparatus.

Fig. 3, a front view of some of the operating parts, showing the casing in section.

Fig. Ll, a. horizontal section on line 4, 4, Fig. 3, showing the gong striking devices.

Fig. 5, a similar section on line 5, 5, showing a means for taking up slack and adshown in Fig. 1, the dial 13, is marked for Vcommunication between the officers station and the engineer-s room of a ship, each of the two groups of order indications, Ahead and Astern occupy a full half circle on the dial and consist of main speed orders and divisional speed orders located between the main orders. 14: and 15, designates the two sets of orders.

Referring to Figs. 2 to 6, the receiving pulley is composed of two parts 16, 17, adjustably connected by means hereafter described. The parts 16, 17, are grooved and carry chains 18, 19, respectively, which eX- tend atleast one half way around them, each being secured in its groove by an inclined block 20, held in place by a screw and by a rivet pin 21, which passes laterally through the rims of the pulley, the block and the last link of the chain. The chains 18 and 19, are guided through an opening in the casing by small pulleys 22, see Fig. 3. A similar dupleX pulley and chains may be used for sending a return order or message, when two similar coacting apparatus are used, but it is preferred to employ a sprocket wheel 23, and

chain 24, as shown in Fig. 2, as such occupies less room than the two part pulley. Both runs of this chain 211, pass through the opening in the casing around guide pulleys. in manner similar to the chains 18, 19.

It is to be understood that the connected apparatus at the stations may be alike and that this description will apply to both of them. It will also be understood that when the sprocket wheels and chains are used in coacting apparatus the chain 24, of each will be connected, through the medium of the transmitting devices, to the chains 18 and 19, of the other apparatus; also that when the return message pulley of the apparatus is of a duplex character, with adjusting means, all of the message sending and receiving devices of the other apparatus 5 may include sprocket wheels and chains.

The casing of the apparatus consists of a circular box 25, to which :is secured a dial 13, and a back plate 26, with a centralizing flange seated in the edge of the box and held in place by screws 27. Lateral lugs or ears 28, are perforated for the reception of screws or bolts used to hold the apparatus in operating position. The front plate, to which the dial 13 is secured, and the back plate 26, are centrally bored to afford bearings for the rotating devices of `the apparatus. j

In the embodiment of the invention illustrated in Figs. l, 2, and 3, the sprocket 23, is attached to or formed integral Ywith a shaft 29, having a bearing in the central bore of the back plate 26, and passes through the' front plate of the casing. On this shaft is fitted a sleeve 30, to rotate thereon, and this sleeve is the hub of the part 17, of the pulley and is seated in the central bore of the front plate of the casing. On the sleeve 30, is seated the part 16, o'f the pulley, which, as shown "in Figs. 2 and 5, is adjustably and rigidly connected to thepart 17, by a right and left hand screw 31, adapted to work in nuts 32 and 33, respectively pivotally secured to the webs or arms of the two parts 16, 17, of the pulley. The nut 33, extends through an opening in the web of the part 16, to

bring it in line with the nut 32. The ends of the screw may be slotted 'for the application of a screw driver thereto to draw the nuts together to tighten the chains and their connected transmission rods, &c., when they become slack. Openings 34, are formed through the sides of the casing for the admission of the screw driver or other tool used to rotate the screw.V j

An index or pointer 35, is secured to the outer end of the sleeve 30, of the message receiving pulley, preferably in an adjustable manner. A collar 36, is fastened, by a key or otherwise, to the sleeve 30, and the hub or boss 37, of the pointer 35, adjoins the collar, their adjacent faces having fine coacting serrations or ridges, whereby theyare firmly locked when pressed together by the nut 38, screwed on the end of the sleeve 30. This construction provides for setting the pointer 35, at zero or starting point, with the coacting apparatus in normal inoperative' condition after the transmitting connections have been made taut.' On the front end of the shaft 29, is securely fastened, by a pin 39, or otherwise, an operating handle 40, provided with a pointer 41, which, with the apparatus normally at rest lies over the pointer 35, at zero or starting point of the message indications on the dial;

In communicating by means of apparatus of this character it is desirable to give an aural, as well as a visual, signal when an order is transmitted. The means devised for this purpose comprises a disk gong 42, secured to the bottoni of the circular box container 25, an escapement device 43, haininers 44, extending from the escapeinent device and pins or teeth 45, on the face of one of the parts of the pulley, as the part 16.

The escapement device 43, is on a head 46, attached to or formed integral with a short shaft 47, fitted to rock in a bearing 48, se-

cured to the inner side of the box container 25.` lThe arrangement is suchthat as the pulley 16,17, rotates the teeth will vibrate the hammers against the gong with two or more blows each time the ypointer moves over an order division `of the dial. The shaft 47 extends through the casing box 25, and is provided with a retaining washer or collar, which may have a handle projection 49, whereby the gongmay be utilized by the attendant in charge as a means for calling or attracting the attention of others.

In the modification, Fig. 6, of the slack taking up means the two parts 16, 17, of the message receiving pulley are arranged and adjustably connected together as follows: The part 17 is formed integral with the shaft 29, the part 16, is on or forms part of a sleeve which extends through the dial 13, and to `its end is secured a collar 50. A collar 51, is carried on and, by a spline, caused Ato rotate with the shaft 29, adjacent the collar 51 is the hub 37, of the pointer 35, which, when loose, is free to rotate on the shaft, but all the parts including the pointer 35,the collars 50, 51, and the two parts 16, 17, of the pulley are rinly clamped together by the nut 52,4 on the end of the shaft 29. The contacting faces of the collars 50, 51, and the hub 37, of the pointer are radially'serr'ated or roughened to lock them rigidly together.

To take up slackin the chains 18, 19, and the transmitting connections the nut 52, is loosened kand the Vcollars are turned in opposite directions, they beingprovided with projections for this purpose, to make all of the connections taut; the nut 52, isset up to lock all of the parts together after the pointers of the sending and receiving apparatus have been set at the zero or starting points of the indications of the dials.

The handle 40, of the return signal, device of the receiving apparatus is securely fastened to the end of the sleeve 53, which has a bearing in the front plate of the `casing 25, and which forms part of the return signal wheel 23. The indicating pointer 41, is formed in the shank of thehandle. The bell 42of the aural signal device of this modification is secured to the back plate 26. the actuating' teeth 45, `extend from the rear face of the part 17 of the receiving pulley and the escapement 43, shaft 47, and hammers 44, are arranged to adequately operate in their new positions, in manner before described. The novel features of this modication, shown in Fig. 6, are included and claimed in an application for Letters Patent filed by us September 8, 1917, Serial Number 193,631.

In some cases the slack taking up `means may be omitted from the pulleys and `a suitable take-up located at some other part of the system; the parts 16, and 17, may then be included in one casting, constituting a two grooved pulley, the chains being connected thereto as before described.

It will be understood that the positions of the operating handles, with the apparatus at rest, may be changed from that shown in the drawings, the order markings on the dials being correspondinglv changed; also that the directions in which the chains enter and leave the casing may vary to meet the requirements of particular applications and locations of the apparatus.

We claim:

1. In a mechanical telegraph system, a transmission connection for coacting signaling apparatus, comprising a two grooved pulley, operating chains secured to the pulley and lapping around the same in opposite directions at least one-half the circumference, in combination with a dial having a set or sets of orders indicated thereon and occupying a full circle and a pointer connected to the two grooved pulley and adapted to move over the whole surface of the dial under the action of the chain.

2. In a mechanical telegraph system, a transmission connection for coacting signaling apparatus, comprising a two grooved pulley, operating chains secured in the grooves of the pulley and' lapping around them in opposite directions at least one-half their circiunferences, in combination with a dial having a set or sets of orders indicated thereon and occupying a full circle and a pointer adjustably connected to the two grooved pulley and adapted to move over the whole surface of the dial.

3. In a mechanical telegraph system, a transmission connection for coacting signaling` apparatus, a pulley having two grooves relatively rotatably adjustable, chains secured in the grooves and lapping around them in opposite directions and means for setting and locking the two grooves positively together, whereby such transmission connection may be made and held taut without undue strain, in combination with a dial having order indications thereon and a pointer connected to the pulley.

4. A signaling apparatus, comprising a two part pulley, chains of a power transmitting connection fastened to and lapping around the two parts of the pulley in opposite directions, means for rotating the two parts of the pulley relatively to one another and positively holding them in set positions, a dial having order indications thereon, a pointer connected to one part of the pulley, a gong, teeth equal in number to the order indications on the dial and carried by the pulley, an escapement device actuated by the teeth and carrying two hammers arranged to strike the gong, the arrangement being such that both hammers are caused to strike the gong when the pointer moves from one order indication to another.

5. A signaling apparatus, comprising a pulley, a chain of a power transmission connection adapted to actua-te the pulley, a disk gong, teeth projecting from the side of the pulley, an escapement device rocking on an axis at right angles to the axis of the pulley, hammers carried by the escapement device and arranged to strike the gong when the pulley is rotated, a dial having order indications thereon and a pointer connected to the pulley.

6. A signaling apparatus, comprising a pulley composed of two grooved parts rotatably movable relatively to one another, chains of a transmission connection fastened in the grooves and extending in opposite directions on the pulley, a screw and nut connection between the two parts of the pulley, whereby they may be set to take up slack occurring in the transmission connection and positively held together in set position, a dial having order indications thereon and a pointeradjustably connected to the pulley.

7. A signaling apparatus, comprising a pulley composed of two grooved parts, one of said parts being litted to rotate on the sleeve of the other part, a screw and nut connection between the two parts of the pulley for setting and positively holding them relatively to one another, chains of a transmission connection fastened to the grooves of and extending around the pulley in opposite directions thereon, a dial having order indications thereon, a collar on the sleeve of the pulley and provided with radial serrations or teeth on its outer face, a pointer having corresponding serrations on its hub and a nut on the sleeve for holding the pointer in different positions against the collar.

8. A signaling apparatus, comprising a pulley, a chain of a power transmission connection adapted to operate the pulley, a disk gong, teeth projecting from the side of the pulley, an escapement device rocking on an axis at right angles to the axis of the pulley, hammers carried by the escapement device and arranged to strike the gong when the pulley is rotated, a handle on the axis of the escapement device whereby the hammers may be vibrated irrespective of the movement of the pulley, a dial having order indications thereon and a pointer connected to the pulley.

9. In a mechanical telegraph system, a transmission connection for coacting signaling apparatus, a pulley having two grooves Copies of this patent may be obtained` for left hand screw fitted in the nuts, whereby the two parts of the pulley may be relatively` adjusted and positively held in setpositions.

Signed at New York, county and State of 15 New York, this 14th day oi' May, 1917` Jol-IN ARTHUR KEEsnv. ALFREDV sHEDLoCK.

five cents each, by addressing the Commissioner of Patents,

Washington, I). C. 

